corkhill



No. 624,754. Patentd May- 5L |899.

H. R. CUR'KHILL, MACHINE FORREFOLDINVG PAPER TUBES;

J KW? Attorrley TH: Norms PETERS co, Pnmuurno.. wAswmrfrcmA n, c.

No. 624,754. Patented may 9, |899.. H. n. cunKHlLL, la.

MACHINE FOR REFOLDING PAPER TUBES.

(Application led Apr. 4, 1898.)

(No Model.) Il Sheets-v-Sheei 2.

d/a, K7-7M A Aw- EMM.

' V Attorneys we nanars PErzns m. momumo., wAsHmcrcN. n. n.

No. 624,754. 'Patented may 9, |899.

H. n. conKHlLL, 1n.

MACHINE EUR REFULDING PAPER TUBES.

(Applcatiop filed Apr. 4, 1898.)

(No Modl.) u` sheets-sheet 3.

WWESEES- MMW- @IJWQM AqormeyS THF. Norms Psrzns co, pHoro-umol, wAsmNsroN, n. c4

No. 624,754. Patented May 9, |899. H... R.C0RKH|LL, JR. MACHINE FDR REFOLDING PAPER TUBES. (Applicatiqn filed Apr. 4, 1598.) (No Model.) II Sheets-Sheet 4.

ma wams virtus co, PNoTaLxTHo., wAsmnGYoN. D. c.

Witnesses No. 624,754. Patented may 9,4999.

H. n. coRKHlLL, 1R. MACHINE FUR REF'OLDING PAPER TUBES.

(Application fxled Apr. 4, 1898.)

Il SheeS-Shet 5.

(No Muriel.)

Inventor.

E AtLO1ney-5 co., mom-Uma. wnsmnanu, n a

luflkm.

No. 624,754. Patented May 9, |899.

H. R. CORKHILL, Jn.

MACHINE FOR REFOLDING PAPER TUBES.

(Application med Apr. 4, 1898.1 (No Modal.)l -Il Sheets-Sheet 6-.

l MLM @M Wm Nv- 624,754. Patented May 9, 1899.

H. B. CRKHILL, 1B. MACHINE FDR REFDLDING PAPER TUBES. E

(Application led Apr. 4, 189B.) 4N o M o d el v Il Sheets-#Sheet 7.

* y@ t V Witnesses. Inventor.

No. 624,754. Patented may 9,1899.

H. n. coKH|LL,.1n.

MACHINE FUR REFOLDIN-G- PAPER TUBES.

. (Application filed Apr. 4, 1898.) (N0 Model.) Il Sheets-Sheet 8.

Inventor.

THE :wams PETERS co.. pHoro-umm wAsHmuToN. b, c,

No. 624,754. Pafentedmay 9,1899. H. n. conKmLL, 1n. I MACHINE FUR BEFOLDING'PAPER TUBES.

(Application filed Apr. 4, 1898.) (No Model.)

II Sheath-Sheet 9.

THE Nonms News co, mmaumo., wAsmNsTou. n. c

No. 624,754. Patented May 9, |899.

' H. n. coRKHlLL, 1n.

MACHINE FR BEFLDING PAPER TUBES.

(Application filed Apr. 4, 189B.) Y (N0 Model.) Il Shees--S'heet l0.

VVitneSSes. A E 25@ Leif M W,

B E" A Inventor.

AttOreyS Tm: Nonms evans ca, Puomuwov. WASHINGTON. DA e.

H. l. CORKHILL, 1n. MACHINE FDR HEFOLDING PAPER TUBES.

(Application filed Apr. 4, 1898A (N 0 M o d 6| Witnesses. 56

Attorney Patented May 9, |899.

Il Sheets-Shelat Il.

HENRY R. OORKIIILL, JR., OF ROCHESTER, NEV YORK, ASSIGNOR TO THE STEOHER LITHOGRAPI-IIO COMPANY, OF SAME PLACE.

MACHINE FOR REFOLDING PAPER TUBES.

SPECIFICATION forming lpart of Letters Patent No. 624,754, dated May 9, 1899.

Application filed April 4, 1898. Serial No. 676,403. (No model.) Y

To cir/ZZ whom it may con/cern:

Be it known that I, HENRY R. OORKHILL, Jr. of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Machines for Refolding Paper Tubes and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part 1o of this specification, and to the reference letters and numerals marked thereon.

My present invention relates to machines of the class shownin my priorpatent,No.554,9S7, for making the tubes or exterior shells of slidi 5 ing boxes from paper or cardboard, the particular improvements embodied in the present application being the devices for handling the tubes, each embodying a number of Aseparate shells, after they have been formed upon 2o a tubemachine such as contained in my prior patent, whereby the gum, paste, or other adhesive securing the lapped edges of the tube may be thoroughly dried and the tubes refolded or broken back on suitable scored or creased lines without liability of their opening at the pasted seam and then severed into the separate shells or covers, so that after the tube-blanks are fed into the tube-machine they do not require handling until the small 3o separate shells for single boxes are delivered at the end of the machine.

In the drawings, Figure 1 is aplan view of a machine embodying my improvements; Fig. 2, an end elevation looking from the lefthand end of the machine shown in Fig. 1 and showing the application of the device to the tube-forming machine contained in my before-mentioned patent; Fig. 3, an elevation of the refolding device applied to the tube- 4o forming machine, looking from the bottom of the sheet containin g Fig. l, with the delivering mechanism at the bottom of said figure removed; Fig. at, a VView looking from the right-hand end of Fig. l, showing particularly the feeding-out and cutting mechanism,a portion of the frame at the end being broken away; Fig. 5, a sectional View on the line or, :n of Fig. l; Fig. 6, an enlarged detail View showing the devices for feeding the blanks into the tube-forming machine and their connection with the feedingout mechanism;

Vout gri'ppers shown in Fig. 16; Fig. 18, asec' PATENT FFICE.

Fig. 7, asectional view on the line c a of Fig.

6;` Fig. 8, a sectional view on the line b IJ of Fig. 1; Fig. 9, a sectional View on the line c c of Fig. 1; Fig. l0, asectionalview on the line 55 CZ d of Fig. 1, showing the ejector-cam and its operating mechanism, the parts intervening between the cam and ejector plate being omitted; Fig. 1l, a sectional View on the line e c ot' Fig. 1; Fig. 12, a hsectional View on the 6o line ff of Fig. 4; Fig. 13, a sectional View on the line g g of Fig. `5; Fig. 14, a sectional view on the line h h of Fig. 4; Fig. l5, a sectional view on the linej-j of Fig. 5; Fig. 15, a view of a modification of the devices shown in Fig. 15; Fig. 16, a sectional View on the line 7c 7c of Fig. 1; Fig. 17, a front view of the feedingtional view on the line m m of Fig. 16; Fig. 19, a sectional viewon the line n n of Fig, 1; 7o Fig. 20, a detail view of the pawl for withdrawing the tubes from the belts of the drying devices; Fig. 21, a sectional plan view on the lines p p of Fig. 16; Fig. 22, a sectional view on the line s s of Fig. 14; Figs. 213 and 75 24:, sectional views of the tubes or shells 0perated upon by the machine; Fig. 25', a detail sectional view of one of the belt-guides; Fig. 26, a detail view of the means for limiting the rotation of the gripper-shaft; Fig. 27, a sec- 8otional view on the line e 2' of Fig. 26; Fig. 28, a sectional View on the line q q of Fig. l, showing the spring devices for holding the grippers.

Similar reference letters and numerals in 85 the different ligures indicate similar parts.

In order that the general operation of the present machine may be clearly understood, I have shown in Figs. 23 and 2-1- two crosssectional views of the paper shells or tubes 9o operated upon by this machine, in which it will be seen that the tubes (each of which embodies several separate shells or covers) have the broad panelsA A' at the top and bottom vand the narrow or side panels B B', 95 all said panels being connected by the flexible hinges formed by creasing or scoring the blanks on lines D D' E E. When the tubes are made and at the time they leave the tubemachine and enter the refolding devices, they roo are folded on the lines D' E only and by the refolding devices are turnedto the positie shown in Fig. 24-that is, they are bent on the lines D E, on which they were not folded during their formation to render these parts fleXible-and then are returned to the position shown in Fig. 23, so that when the tubes or shells leave the machine both the scored or creased lines or hinges are rendered flexible, and the shells may be readily moved up into rectangular position to receive the usual slides.

WVhile the present machine is particularly adapted for operating upon tubes for slideboxes, it will be understood that angular paper tubes for other purposes or connected boxes having the flexible hinge-joints between the parts could be operated upon.

Though it is not absolutely necessary that the refolding devices return the' tubes to the position in which they are formed, it is desirable that they do so, as the shells will remain fiat and in better condition for packing.

In my prior patent referred to I have shown a machine for making and refolding paper tubes from blanks, the refolding of the tubes being accomplished rdirectly after their formation; but in some instances, as where the machine is operated rapidly, unless the glue is maintained at the proper consistency the tubes are liable to be opened by the non-adhesion of the pasted or glued lapped edges while being refolded, and to prevent this and also to carry the completed tubes without bending them and to thoroughly dry the glue and at the saine time to economize hoor-space I apply my presentimprovements tothe prior forming-machine referred to or to one similar to it. However, no particular form of tubemachine is essential, but any one that makes tubes from separate blanks could be used.

1 indicates the main frame of the tubeforming machine before referred to, provided with a feeding-table 2 and embodying generally a movable belt-frame 3, pivoted at 4, carrying a blank-feeding-in belt 5, coperating with a corresponding belt 6. dicate the blank creasing or scoring rollers; 9, the blank-feeding rollers; 10, a large drying-wheel at the end of the frame; 11, the small rollers arranged around its periphery, over which the supplemental carrying-belts 12 extend, and 13 the glue-pot. All of said parts are constructed as in my before-mentioned patent and shown herein only diagrammatically.

Ait the bottom of the frame l of the tubeforming machine I arrange a pair of traveling belts 15, between which the flattened tubes are delivered from the belt l2 or to which the flat tubes are delivered by hand or from any suitable tube-feeding machine. At opposite sides of these belts 15 are arranged adjustable guides 16, between which the tubes pass and are delivered between carrying-belts 17, passing around pulleys 13 18X, mounted on suitable shafts in a su pportin g-frame 19, the completed attened tubes being carried longitudinally by said belts a certain distance, lim- 7and Sin-k ited by a stop 20, and are then ejected laterally from between them by a movable ejectorplate 21, connected to arms 22, operating in suitable guides in the frame. These arms are connected to links 23, pivoted to arms 24, rigidly secured to a rock-shaft 25, an arm 24u on the lower side of said shaft being operated upon by a pitman 2G, having a projection 27, actuated in one direction by the cam 28 on the shaft 29, said projection and cam being held in engagement by a spring 30, connected to the link 23 and to the frame. rIhe flattened tubes after being pushed out from between the belts 17 are delivered upon the surface of disks or pulleys 31, arranged upon a shaft 32, parallel with the shaft 29, and beneath gripping-fingers 23 on a rock-shaft 34, mounted in bearings formed upon the arms 35 on the shaft 32, said shaft 32 having at its end a triangular block 35, adapted to engage with pins 36 and 37 on a plate 38 at the end of the machine, so as to cause the engagement and disengagement of the gripping-iingers. In order to hold the shaft 34 in either of its positions with the grippers open or closed, I provide a spring 39, pivotally attached to a sleeve 39, rigid on the shaft 32, and also pivotally attached to an arm 33a on the shaft 34, as shown particularly in Fig. 28. The rocking motion of the shaft 34 is limited by a lug 39h, secured thereon and engaging shoulders 39con one or more of the arms 35, as in Figi. 2G and27. The stop-pins 36 and 37 are so arranged relatively to the rotation of the shaft 32 and the operations of the parts are so timed that as the flattened tubes are pushed from between the belts the grippers will operate to grasp them and carry them downward a portion of a revolution. 'lhen the stop 37 will cause their release and allow the tubes to be deposited within and to be supported by a series of oscillating hooks 40 on arms secured to an oscillatory shaft 41, mounted in bearings in the frame parallel with the shaft 32. Also mounted loosely upon the shaft 41 are pulleys 42, around which eX- tend carrying-belts 43, and at the'end of said shaft is provided a gear 44, meshing with a segment 45, mount-ed upon the end of an oscillatory shaft 46, arranged above the shaft 41 and having upon it loose pulleys 47, around which extend belts 43X,correspondin g to belts 43 beneath them. The horizontal stretches of the belts 43 and 43X extend in contact, and said belts pass around pulleys 43 on shafts 49, whiehlatter are removed a sufficient distance from the pulleys 42 and 47 so that the glue on the lapped and pasted edges of the tube may dry thoroughly before the tubes reach them. The shafts 41 and 46 are oscillated intermittently Vin one direction by means of a pitman 50, pivoted at one end to an arm 51 on the shaft 46 and adjustably connected at the other end to a rock-arm 52, mounted loosely on the shaft 25.

53 indicates a pitman having bifurcated ends and a projection 54 thereon, operated IOO upon by a cam 55 on the shaft 29, (shown particularly in Fig. 19,) this cam and the parts just described being so timed that as soon as the folded tube (indicated by the letter T, Fig. 9) is transferred to the hooks 40 the latter will be moved upward bythe cam and deliver the tu be sidewise between the traveling belts 43 and 43X, which are continuously moving,- as will be presently described. The connecting-rod 50 is operated in the opposite direction from that described and theprojection 5i held against the cam by the spring 50X, connected to the pitman and to the frame,

as shown in Fig. 5. Vhile the belts 43 and 43X serve as conveying-belts also, they are principally useful for carrying the tubes in between pairs of conveying-belts 56, which are arranged with their horizontal proximate stretches in contact and are continuously moving and mounted upon pulleys 57 and 58, the former arranged upon shafts 59, journaled in suitable bearings, and the latter secured rigidly to the rotary shafts 49.

Thebelts 43, 43X, and 5G may be of any suitable length; but I prefer to make them sulliciently long so that the tubes carried between them will'have ample time to dry before being fed to the refolding device, and in the drawings I have indicated this dryingcarrier of indefinite length by breaking away the central section thereof. A suitable tension may be given to the belts to hold the tubes firmly between them and prevent slipping by a transversely extending bar 60, mounted upon arms 6l, pivotally adjustable upon the frame and secured by boltsGOX, as shown particularly in Figs. 2 and 5.

The shafts 29 and 32, which cause theoperation of the hookand gripper shafts just described, and also the devices for controlling the feeding of the blanks into the tubeforming machine, are operated from a timing or controlling shaft G2, mounted in the present instance in the frame of the tube-forming machine, said shaft G2 being provided with a pinion G3, meshing with a gear 64 on the cam-shaft 29, which meshes with a gear 65 on the shaft 32.

66 indicates a pinion mounted in the frame of the tube-machine, meshing with a gear 67 on a short shaft (53, provided with a cam 69, operating upon a stud or projection 70 on a yoke at the lower end of a vertically-extending thrust-rod or pitman 7l, which controls the device for governing the feed of the blanks to the tube-machine. This blank-feeding device is similar to that contained in my beforementioned patent, embodying the oscillating frame 3, carrying the blank-feeding belts 5, said frame being connected by the connecting-link 72 with the rod 7l.

73 indicates a yielding blank-stop mounted upon the end of an arm 74, pivoted at 75v to the `main frame and provided with a slot 7G, in which operates a finger 77, adjustably secured upon the pin 7 8 on the connecting-link 72, as shown in Figs. 6 and 7. The connection'between the parts is such that at the same time that a blank is fed into the tubeforming machine a folded tube is transferred to the holding and conveying belts 50 for transmission to the refolding devices. The pusher, grippers, and hooks constitute transferring devices for feeding the tubes to the holding and conveying belts 43 and 5G from the conveyers 17.

The tube-refolding devices may be of any suitable description and are arranged in a frame 99, located parallel with the frame l of the tube-forming machine; but prefer to employ substantially the form of device shown in my before-mentioned patent and also contained in my pending application, Serial No.

572,763, and embodyingaseries of plain-faced a line at the entering end to rhomboidal form,

then rectangular, then rhomboidal again,with

the angles reversed from the previous rhomboidal form, and then approximately a line,

folding the tube on the creased lines of the blank on which it was not previously folded during the forming operation, and then of such form that the tube is refolded into the position or form occupied by it when it entered the refolding device, as shown in Figs. 23 and 24. The various positions that the tube assumes in being refolded are shown in my prior patent, and I have not deemed it necessary to show or specifically describe herein the refolder, but have indicated the pairs of rollers by the numerals to 112 inclusive.

The tubes carried by the belts forming the drier and conveyer are delivered upon a table 80, and to straighten them and insure their proper delivery and timing with relation to the other parts Iv provide reciprocating arms or rods 8l, operating in guides 82, eX- tending between the'sides of the frame and `having on their forward ends gravitating latch-fingers 83, adapted to yield and pass over the tubes when the arms are thrust in and to drop down and engage them during their outward movement and pull the tubes up against the guide or gage 84E, arranged on the table SO, as shown particularly in Figs. l, 5, and 20. The arms Sl for feeding out the tubes are connected by arms 85 to an oscillating shaft 36, provided with an arm 87, connected by a connecting-rod S8 with the longer arm of a lever 89, pivoted loosely upon the shaft 25 upon the other side of the'machine, the shorter arm of said lever 89 being pivoted to a yoke-arm 90, having a pin or projection 91, operated upon by a cam 92 on the shaft 29, as shown in Figs. 5 and ll. This cam causes the inthrust of the rods 8l, and the movement in the opposite direction is caused by a spring 93, connected to the cross-arm 94 of the frame and to the lever 87, as shown in Fig. 5. Mounted upon the connecting-rod `88 TOO IIO

arm 128.

is an adjustable stop 95, which limits the upward movement of the pull-fingers or latches,

so that tubes of different widths may be drawn against the stop or gage 84, which latter is also adjustable, as shown in Fig. 1.

Referring particularly to Figs. 2, 3, 5, and 15, 120 indicates a carriage or slide movable in suitable ways beneath the table 8O and having upon it an adjustable feeding-finger or pusher 121, operating in a slot in said table, said finger being adapted to engage the end of the folded tube delivered upon thetable and to feed the same longitudinally and at right angles to the conveyers 56 into the p refolding device, and as a means for actuating this carriage I provide an oscillatinglever 122, pivoted at 123 to a bracket-arm 124 on the supporting-frame, the upper end of said lever being adjustably secured to the carriage by a link 126, pivoted to the lever and to a bolt 126a on the carriage. The lever is connected by a pitman 127 with a wrist-pin upon a disk or wheel 129, journaled in a bracket- This wheel 129 is rotated continuously by gearing 130, shaft 131, gears 132, a shaft 133, gears 134, vertical shaft 135, and gears 136, one of which latter is mounted upon the main shaft 137.

If desired, instead of causing the even backand-forth motion of the feeding-finger bythe use of the pitman 127 said finger vmay be moved in the direction to cause the tube to be fed into the refolder at one speed and returned to its outer position at a relatively higher speed, these movements being accomplished by the mechanism shown in Fig. 15, in which figure I have shown the operatinglever 422 pivoted to the bracket-arm 423, onY

which the operating-wheel 429 is journaled, said wheel being provided with a wrist-pin 428, operating in a slot 427 in the lever. In this device the wrist-pin is closer to the center of oscillation of the lever when the carriage is moving outward, and therefore the return movement is more rapid than the inward or feeding movement of the'finger.

The shafts 49, operating the belts 56 and 43, are geared together,and the upper one is driven from the shaft 133 by beveled gears 138, shaft 140, and gears 141, as shown particularly in` Figs. 1 and 5.

After the tubes have passed through the refolding devices they are delivered betweenV belts 270, corresponding to belts 17, previously described, and are forced laterally from between said belts by a pusher 221, connected to arms 222, actuated in one direction by springs 230 and in the other by a cam located on the shaft 229 and operating through connections such as shown in Fig. 10, all of the parts corresponding and being, in fact, duplicates of the parts numbered 20, 21, &c., at the end of the tube-machine. Arranged parallel with the shaft 229 is a shaft 232, carrying disks and grippers for receiving the refolded tubes and delivering them into hooks 240 on the shaft 241, carrying pulleys around which pass belts 243, corresponding to belts 43, and the construction and operation of said parts being as before described and as shown in Figs. 8, 9, and 19. These belts 243 carry the tubes between pairs of conveying-belts 256, corresponding to the belts 56, which belts convey the tubes between the cutters and deliver the complete shells upon the deliveringtable 280.

Specific description of the parts for delivering the tubes from the refolder between the belts 256 seems unnecessary in view of the i clear illustration and description of the same mechanisms employed for feeding the tubes into the driers. The shafts 229 and 232 are driven from the shaft 133 by gears 340, 341, 342, 343, and 344, as shown in Fig. 4. The belts 256 pass around and are driven by pulleys 319 and 320 on the shafts 271 272, the former shaft having a gear 273 at one end, meshing with a gear 274 on the latter, and the shaft 272 having at one end a beveled gear 275, meshing with a corresponding pinion on a shaft 276, driven by gears 277 from shaft 133, as shown in Fig. 1. with a large gear 278 and serves to transmit motion through the pinions 279 to the shafts 281 and 282, carrying the cutters 284, as shown in Figs. 1 and 4. The belts 256 are kept with their proximate stretches iu engagement by a cross-rod 260, attached to adjustable arms 261, similar to the arm 61, described with reference to the tightener 60. (Shown in Fig. 5.) The shaft 282, carrying the lower cutters, is also provided with the pulleys 283 for holding the tubes tightly while they are severed by the cutting-disks 284, which are mounted upon the shafts 281 and 282, as shown particularly in Fig. 12. The belts 256 are guided and prevented from moving laterally by means of forks 456, secured upon a laterallyextending rod 457, arranged between the horizontal stretches of the lower belts, the fingers of said forks being slightly shorter than the thickness of the belts, as in Figs. 14 and 25, sc as not to interfere with the tubes held by the belts.

In order that the tubes may be accurately positioned before passing between thecutters and also that they may be straightened if they should have been slightly twisted or otherwise improperly placed between the belts, I provide between the stretches of the upper belts 256 a cross-bar or frame 285, in which are bearings for longitudnally-reciprocating arms 286, connected by links 287 with arms formed upon or secured to a rock-shaft 288, mounted in bearings on the cross-bar 285. The rods 286 are provided with adjustable arms or brackets 2862, having pivoted latchfingers 289 thereon, passing down between the belts and adapted when moved away from the cutters to slip over the paper tubes (yielding on their pivots for the purpose) and when moved in the opposite direction to carry said tubes forward toward the cutters a determi- The gear 274 also meshes v Il l nate distance. The motion for operating the rods and fingers in the manner described is communicated to the rockshaft 288 by an arm 290, pivoted at its upper end to a connectingrod 291, pivoted on an oscillating arm 292 and actuated in one direction by a cam 229a and in the other by a spring 293, as shown in Fig. 4. The rock-shaft 288 is also provided with an arm 294, connected to a bell-crank lever 295, pivoted on the cross-bar 285 and having one arm connected to a longitudinallymovable rod 296, sliding in bearings in the side frame and having upon it a stop or finger 297, adapted to engage the end of the tube at the side of the belts and move it longitudinally a determinate distance, so as to properly position the tubes longitudinally. This finger 297 is adjustable by means of a screw 298, operating through a bracket 299 on the rod 296 and provided with a set-nut 300, as shown particularly inv Fig. 14. The oscillation of the shaft 288, it will be seen, causes the lateral and longitudinal movement of the4 tubes while between the belts, and by the adjustment of the finger 297 the lines of severance can be accurately determined.

lVhile the tubes are being severed into short sections by the cutting-disks 284, the slides are held firmly by the belts 256, as shown particularlyin Fig. 12,which latter then carry the sections onward and pass around pulleys 319 and 320,arranged on the shafts 271 and 272, respectively. To insure the proper positioning of the separate shells upon the feedingout table 280, IY arrange upon the shaft 272 and between the pulleys for the belts thereon several series of gripping-fingers 301, secured to shafts 302,journaled on the pulleys 320 and spaced equally around them,fourbeingshown in the present instance, said shafts having upon their ends crank-arms 303,eacl1 provided with an operating-pin 304, adapted to coperate with a stationary cam-ring 305, arranged at the end of the shaft, and also with two pivoted spring-operated cam-plates 306 307, pivoted at 308 and actuated downward by a spring 309, as shown particularly in Figs. 16 and 17. These cam-plates are adapted to yield independently, and the cam-surfaces thereon are preferably comparatively short, so that they will both operate independently uponV the wrist-pin 304 during a quarter ofa revolution of the shaft 272. The table280 is provided with fingers 280x, which project in suit-A able grooves 321, formed in the pulleys 320, so as to arrest the shells as they are presented edgewise upon the table, and as succeeding shells are fed in behind those on the table the Whole mass will be pushed to the outer end, suitable yielding stops being employed to keep them together. The cams and grippers are so arranged and timed with relation to the feeding-in devices and the straighteningfingers 289 that the gripping-lingers are held open by the cam 305 until the wrist-pin 304 engages the cani portion of the plate 306,when the gripping-fingers are closed down upon the ends of adjacent shells, as shown in Fig. 16,

said cam-plate 306 holding the grippers in engagement until the pins 304 pass beneath the cam on the plate 307, 'which still holds the grippers closed until the ends of the fingers are aboutlevel with the table 280. Then the pin 304, engagingthe shoulder 350 of the cam 305, releases the fingers and allows the shells to be retained by the fingers on the table. The object of employing two yielding cam-plates is to prevent the release of the succeeding grippers when the preceding ones are operated by the shoulder 350, as will be understood from an inspection of Fig. 16. The pulleys ,320 on the 4shaft 372 preferably abut at the edges and are provided with recesses for the accommodation of the grippingfingers arranged between them, as shown particularly in Fig. 18, there affording-practically a continuous roller from end to end.

The general operation of the machine will be understood from the foregoing, the blanks being fed into a tube-forming machine either such as contained in my previous patent or any other suitable machine. Then the tubes are delivered to the conveying-belts 56, being maintained with their pasted or glued edges held firmly together and are moved laterally and at comparatively short distances apart, so as to dry the glue thoroughly, this lateral movement being continued for a sufficient length of time to allow the glue to dry, and then are fed one at a time into the refolder and are delivered laterally and severed into separate shells and packed upon the receiving-table 280. Itis quite important that the various mechanisms be properly timed to accomplish the various operations and also that the devices for feeding the blanks into the tube-forming machine be timed with relation to the tube-feedingdevices. As these various devices for feeding the tubes in and out of the operating mechanisms may be adjusted, the machine may be readily adapted for boxes or tubes of various sizes without altering the construction ofthe machine.

It is immaterial what form of tube-refolding device is employed; but I prefer that disclosed in my before-mentioned patent, as I have found that it is admirably adapted for the purpose and is capable of being adjusted or accommodated to tubes or boxes of various sizes. p

I claim as my invention- 1. The combination with a machine for forming iiattened or collapsed angular paper tubes in which the blanks from which the tubes are constructed, and said tubes moving longitudinally through the machine, of devices for refolding said tubes on lines other than those on which the blanks are folded during their formation, and mechanism for moving the tubes laterally from the tubeforming machine to the refoldin g devices and devices for feeding the tubes to said refolding devices.

2. The combination with a machine for fold- IOO IIO

, ing creased blanks iutoflattened or collapsed g tubes,said blanks havin glongitudinal creased lines other than those on which they are folded in the formation of the tubes and in which the blanks and tubes moving longitudinally through the machine, of a refolding device through which the tubes are passed longidinally and operating to refold them on the creased lines, said tube-machine and refolder extending longitudinally in parallel planes, and a conveying device for carrying the tubes laterally from the tube-machine to the refolder.

3. The combination with a paper-tubeforming machine embodying blank creasing, pasting and folding devices, of a refolding device for refolding the tubes on the creased lines in the opposite direction from that in l which they are folded du rin g their formation,

said tube-machine and refolder extending substantially parallel with each other, and conveying and feeding devices for holding the tubes fiat and carrying them laterally from i the tube-machine to the refolder and feeding f rying the separate tubes from the former to y the latter and holding them in dat condition and without bending or flexing them laterally,

thereby holding the pasted edges of the blanks in contact and permitting them to dry before the tubes are refolded.

5. The combination Witha paper-tube machine embodying the blank creasing, pasting and folding devices, and means for moving the blank through the machine longitudinally, ejecting devices for moving the folded tubes laterally from the forming-machine, y

conveying and holding devices for carrying the folded tubes laterally, al refolder for refolding the tubes on-the creased lines as they pass longitudinally through it, a tube-feeding device for the refolder operating to receive the tubes from the conveying device and to feed them into the refolder.

6. The combination with a machine for forming separate paper blanks into flattened rectangular tubes having longitudinally-extending creased or scored folding-lines, and the lapping edges pasted together, of a refolder having moving walls for refolding the tube on the folding-lines, intermittently-operating devices for feeding the separate tubes to the refolder, tube-oo nveying devices between the tube-machine and the refolder, intermittentlyoperating devices for feeding separate paper blanks to the tube-machine,

and connections between the blank-feeder and the feeder for the refolder, whereby the blanks and tubes are moved synchronously through the machine.

7. The combination with a machine for forming separate paper blanks into '[iattened angular tubes, having longitudinally-extending creased or scored folding-lines and the lapping edges of the blanks pasted together, of a refolder having moving walls for refolding the paper tubes on the creased or scored lines, a conveying and drying mechanism between the tube-machine and the refolder, intermittently-operatin g devices for controlling the feeding of separate blanks to the tubeforming machine, intermittently-operating devices for feeding the separate tubes to the conveyer and drier, and devices for feeding the separate tubes from the conveyer, all said feeding devices being connected for synchronous operation, substantially as described.

S. The combination with a machine for forming paper blanks into flattened rectangular tubes having longitudinally creased or scored folding-lines with the lapping edges of the blanks pasted together, of a refolder for refolding the paper tubes on the creased or scored lines, a conveying and drying mechanism between the tube-machine and refolder, a tube-cutting machine arranged beyond the refolder, devices for controlling the feed of blanks to the tube-machine, tube-feeding devices for the conveyer arranged between the tube-machine and conveyer, tube-feedin g devices for the refolder arranged between the conveyer and refolder, tube-feeding devices for the cutter arranged between the refolder and cutter, all said blank and tube feeding devices being connected for synchronous operation, substantially as described.

9. The combination with tube-conveying devices, such as belts 17, and the rotary shaft arranged parallel therewith, having grippers thereon, of4 the oscillatory hooks for receiving tubes from the grippers, and conveyingbelts between which the hooks operate.

lO. The combination with the rotary shaft, having grippers thereon, of the oscillatory shaft, the hooks thereon for receiving tubes from the grippers, pulleys loose on the oscillatory shaft, and conveying-belts on the pulleys receiving tubes fromvthe hooks.

ll. The combination with the rotary shaft having the pulleys, the gripper-shaft mounted on the shaft having gripping-lingers and the block at the end, the stationary projection with which the block engages, and the spring for holding the gripper-shaft when operated.

l2. The combination with the rotary shaft, having the pulleys, the rock-shaft having the gripper-fingers cooperating with the pulleys, of cam devices for rocking the rock-shaft and operating the gripping-fingers, a spring connected to the rotary shaft and pivoted to the rock-shaft and pressing toward the center of the latter, and stops for-limiting the movement of the rock-shaft. f

13. The combination with the rotary shaft having the pulleys and gripper-lingers thereon, of the oscillatory shaft,the open hooks thereon cooperating with the grippers, the

ICD

IIO

belt-pulleys loose on said shaft, a shaft parallel with the'hook-sha'ft and belt-pulleys thereon, separate conveying-belts extending around the pulleys on the shafts, and means for driving said belts to carry off the tubes delivered between them by the hooks.

l-l. The combination with the rotary gripper-shaf t, the gri ppers thereon, the oscillatory shaft and the open hooks thereon, the shaft above the hook-shaft, gear connections between said shafts, and means for oscillating one of them, and a series of pairs ot conveying-belts having parallel stretches and between which the hooks operate.

15. The combination with the pushers 21, the rotary shaft, the grippers thereon, `the oscillating shaft, the open hooks thereon, and conveying-belts between which the hooks operate, of a controlling cam-shaft, as 29, and connections between it and the rotary shaft, oscillating shaft and pusher whereby the parts are properly timed.

16. In a tube-machine, substantially as described, the combination with belt-supporting pulleys, a series of pairs of conveying-belts, each pair havin g stretches in contact, of an adjustable belt-tightening bar extending transversely between the stretches of one belt of each pair and operating upon the stretches in contact, said bar engaging the belts between the belt-supporting pulleys.

7. The combination with the conveyers, such as belts 256, of the movable fingers operatingbetwecn the belts and movable longitudinally, the receiving-table and the reciprocating feeding-finger movable transversely ol' the movement ot the belts.

18. lnatube-machine,the combination with the tube-conveying belts, a receiving-table, and a refolding device arranged at one side ofsaid belts,ofa feeding-finger movable transversely of the belts and operating to feed the tubes longitudinally into the refolder.

19. In a tube-m achine,the combination with vthe conveying-belts, the receiving-table, and

the refolder at one end of the latter, of the reciprocating arms having latches thereon and operatinglongitudinally of the belts, and a reciprocating tube-feeding iinger movable transversely of the belts to feed the tubes longitudinally into the refolder.

20. The combination with the slotted receiving-table 80 and the refolder at the end of the table, of the slide beneath the table, the feeding-finger on the slide, and means for reciprocating theslide in opposite directions.

2l. The combination with the receiving-table and the refolder at the end thereof, of the slide or carriage having a feeding-finger, the lever pivoted to the slide and to the frame, the rotary wheel having the wrist-pin and the pitman connecting the slide and lever.

22. The combination with the tube-conveying devices, such as belts 17, conveying-belts operating at right angles tothe other conveyers, and transferring devices for removing the tubes from the first-mentioned conveyers devices for operating said rods in one direc-.

tion, a spring for operating said rods in; the other direction, and an adjustable stop for controlling the movement of said rods.

24. The combination with the series of tubeconveying belts, such as 256, of the latch-iingers movable longitudinally of the belts, and the finger movable laterally of the belts, said fingers engaging the tubes and straightening and positioning them, and connections for causing the simultaneous operation of saidfingers.

25. The combination with a series of tubeconveying belts, such as 256, and rotary cntters arranged between them, of pushing or jogging lingers movable laterally and longitudinally of the belts and operating upon the tubes held between them to position them.

26. The combination with a series of tubeconveying belts, such as 256, and rotary cutters arranged between them, of the pivoted fingers 289, and the iinger 297, connected for simultaneous operation to straighten and properly position the tubes'held by the belts.

27. The combination with the belts 256, the

. reciprocating rods 286, the latch-tin gers thereon, the rod 296 movable laterally of the belts, and the adjustable finger 297 thereon, of the rock-shaft 288, and connections between it andthe rods 286 and 296, substantially as described.

28. The combination with a series of pairs rool l'IO

of tube-conveying belts, of rotary cutters ar- .l

ranged between said pairs of belts, and rotary grippers also arranged between said belts, substantially in line with the cutters and operating to grip the ends of the adjacent tubesections. l

29. The combination with a series of rotary cutters, conveying devices for moving paper tubes laterally between said cutters, of a series of feeding-out grippers arranged substantially in line with the cutters in the direction of movement of the tubes and operating to grip the adjacent ends of the tubesections.

30. The combination with a series of rotary cutters, conveying devices for moving paper tubes laterally between said cutters, of a series of rotary pulleys having the grippers thereon, substantially in line with the cutters in the direction of movement of the tubes, and the receiving-table whereby the adjacent ends of the severed tubes will be grasped by single grippers and fed upon the table.

31. The combination with a rotary pulley having a plurality of pivoted grippers arranged around its periphery each gripper having an eccentric-operating projection, as 304, and two independent spring-operated cam-plates, as 306 and 307 with which the operating projections successively coperate.

32. The combination with a rotary shaft,

the pulleys, a plurality of shafts journaled in the pulleys and having gripping-fingers thereon, and the cranks 303 and pins 304 on the shafts, ofthe cam-plate 305, the independent spring-operated plates 306, 307 with which the pins engage, and the receiving-table 230.

33. The combination with the shaft 272, the pulleys 320 arranged on the shaft and having their edges abutting and the recesses in their adjacent edges, the shafts 302 journaled in the pulleys, the gripping-fingers in the recesses between the pulleys, and means for operating` said gripper-shafts. A

34. The combination with a machine for forming paper tubes, a movable finger, as 73, controlling the feed of tube-blanks to said machine, and means for operating it, of the tube-feeding belts, as 17, the laterally-movable pushers, the cam-shaft for operating them, as 29, the controlling-shaft, as 62, and connections between said controlling-shaft, the nger-operating devices and the camshaft for causing their synchronous operation.

35. The combination with a machine for forming paper tubes, blank-feedingdevices therefor embodying thebelts 5 and 6, the movable frame 3 and the finger 73, of the camshaft 63 and the cam thereon, connections between said cam-shaft and the frame 3 and linger 73, a pair of feeding-out belts, as 17, the laterally-movable pusher, the cam-shaft 29 controlling the operation of the latter, and gearing between the shafts 68 and 29, substantially as described.

36. The combination with the conveying` belts, as 256, of the belt-guides having fingers shorter than the thickness of the belts, and

means for moving the tubes laterally of the belts and while held between' them.

37. The combination with the vconveyingbelts 256, arranged in pairs and with corresponding stretches in contact, of the guidinglingers L156 arranged to guide the upper stretches of the lower belts, and means for operating the tubes laterally and while between the belts.

30. The combination with the tube-forming machine and blank-feeding devices for feeding single blanks to said machine and embodying a movable framel 3 carrying feeding devices, of conveying devices, such as belts 17, at the rear of the tube-machine, a laterally-movable feeding-out device, such as a pusher 2l, and positive connections for simultaneously operating the pusher and the movable frame for causing the feed of a blank and the removal of a complete tube.

40. The combination with a tube-machine, and a blank-feeder embodying a movable frame, such as 3, of conveying devices, such as belts 17, at the rear of the tube-machine, and a movable feeding-out4 device, such as pusher 21, a cam for actuating the blankfeeder frame, a cam for actuating the pusher, and connections between said cams for causing the positive and simultaneous operation of the feeding-in and feeding-out devices.

HENRY R. CORKHILL, JR.

Witnesses:

F. F. CHURCH, E. W. BULLooK. 

